Identify the element having smallest ionic size in +3 state from following.

Identify the element having smallest ionic size in +3 state from following.
  1. Nd
  2. Ho
  3. Sm
  4. Lu

Solution

The phenomenon of lanthanide contraction is observed in case of 4 f elements due to an increase in the effective nuclear charge in lanthanides. Thus, the atomic and ionic radii decrease continuously from lanthanum ( $Z=57$ ) to lutetium $(Z=71)$.

Asked in: MHT CET 2024 (03 May Shift 2)

Practice more Transition and Inner Transition Elements questions on Aicharya